There is a slit in the metal construction that moves and originally holds a pin, that attaches to an arm that gets pulled forward to trigger a switch. Check if that hole is in the same area, where the pcb will be and if a proximity sensor can be put on the pcb to detect hole movement and trigger the shots in return.
There is a slit in the metal construction that moves and originally holds a pin, that attaches to an arm that gets pulled forward to trigger a switch. Check if that hole is in the same area, where the pcb will be and if a proximity sensor can be put on the pcb to detect hole movement and trigger the shots in return.